write a short note on the topic coal
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Coal is a fossil fuel, formed by the decay of vegetation which existed millions of years ago. Coal Gas: Coal gas is obtained as a by-product during the processing of coal to form coke, and is used as a fuel. Coal Tar: It is a black thick liquid with an unpleasant smell obtained by the processing of coal.
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Coal is primarily used as fuel to generate electric power in the United States. In coal-fired power plants, bituminous coal, subbituminous coal, or lignite is burned. The heat produced by the combustion of the coal is used to convert water into high-pressure steam, which drives a turbine, which produces electricity.
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